Home / 20,440,128.94-30,666,836.41-13,644,327.15

Finding the Fourth Proportional to 20,440,128.94, 30,666,836.41 and 13,644,327.15

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Solution

The fourth proportional to 20,440,128.94, 30,666,836.41 and 13,644,327.15 is: 20,470,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,128.94 : 30,666,836.41 = 13,644,327.15 : x
  2. Step 2: Convert to fraction form
    20,440,128.94/30,666,836.41 = 13,644,327.15/x
  3. Step 3: Cross multiply
    20,440,128.94x = 30,666,836.41 × 13,644,327.15
  4. Step 4: Simplify right side
    20,440,128.94x = 418,428,348,731,308.12
  5. Step 5: Solve for x
    x = 418,428,348,731,308.12/20,440,128.94
  6. Step 6: Final answer
    x = 20,470,925.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.